EUROTRANS Cryomodule

For the EUROTRANS Program (Contract FI6W-516520-EURATOM) a single
cavity cryomodule has been designed and is currently under fabrication.
The module will be installed at the 700 MHz test stand in IPN-Orsay,
where high power 700 MHz 80 kW CW RF station is being set up, along
with the necessary cryogenic infrastructures for testing.

The superconducting cavity

The module contains one of the two TRASCO cavity prototypes, an
elliptical cavity with a geometrical length for b=0.47 proton beams,
that can efficiently operate in the range from 100-200 MeV. The latest
cavity status has been presented at PAC09 and EPAC08.

The engineering model of the cavity

The Cavity delivered to IPN-Orsay

A 3D step model of
the cavity dressed with its helium tank and cold tuner is available for
download (14 MB).

The cryomodule

The EUROTRANS cryomodule has a mechanical design similar to the US
SNS linac modules.

The cavity, surrounded by a nitrogen-cooled thermal
shield, is suspended by tension rods to a steel frame, which
slides into a SS (AISI 304L) vacuum vessel.

The cryogenic cold box, designed by IPN-Orsay, is connected from the
top flange, where all cooling circuits for the cavity, coupler and
shield cooling, are routed.

An overview of the module design and foreseen experimental
activities has been presented at SRF09, PAC09, EPAC08, APAC07 and SRF07
Conferences.

A 3D step model of
the complete cryomodule is available for download (50 MB).

Fabrication

The module has been fabricated at the Simic S.p.A. company in
Camerana (CN), Italy. The delivery to IPN-Orsay took place in March
2010.

Status of the Vessel, shield and frame support in
November 2009.

Installation of the cavity in the module

The TRASCO cavity has been integrated in the EUROTRANS module at IPN
in March 2010. The module is now waiting for the peparation of the
testing area at IPN-Orsay, where it will be connected to the cold box
for the starting of the experimental program in Summer 2010.